A set is defined as collection of objects, or elements. Familiar examples are the set of greek letters, f ̨; ˇ; !; : : : ; !g, the set of binary values, B D f0; 1g, and the set of integers Z D f: : : ;!1; 0; 1; : : :g, the set of positive integers (or natural numbers) N D ZC D f1; 2; 3; : : :g, the set of negative integers Z! D f!1;!2;!3; : : :g, and the set of nonpositive integers Z" D f0; 1; 2...